/**
 * Copyright (c) 2016 DeepCortex GmbH <legal@eventql.io>
 * Authors:
 *   - Paul Asmuth <paul@eventql.io>
 *   - Laura Schlimmer <laura@eventql.io>
 *
 * This program is free software: you can redistribute it and/or modify it under
 * the terms of the GNU Affero General Public License ("the license") as
 * published by the Free Software Foundation, either version 3 of the License,
 * or any later version.
 *
 * In accordance with Section 7(e) of the license, the licensing of the Program
 * under the license does not imply a trademark license. Therefore any rights,
 * title and interest in our trademarks remain entirely with us.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the license for more details.
 *
 * You can be released from the requirements of the license by purchasing a
 * commercial license. Buying such a license is mandatory as soon as you develop
 * commercial activities involving this program without disclosing the source
 * code of your own applications
 */
#pragma once

namespace csql {

template <class T>
T* QueryTreeUtil::findNode(QueryTreeNode* tree) {
  auto self = dynamic_cast<T*>(tree);
  if (self != nullptr) {
    return self;
  }

  for (size_t i = 0; i < tree->numChildren(); ++i) {
    auto node = QueryTreeUtil::findNode<T>(tree->child(i).get());
    if (node != nullptr) {
      return node;
    }
  }

  return nullptr;
}


} // namespace csql
